This move was a business move not a basketball move. It saves $600,000, might get the C's under the luxury tax, and/or open more space under the hard cap.
It has nothing to do with bigs or guards or anything else. It was business and Danny is going to give Williams and Crawford to Doc and tell him:
"Just make it work until the end of the year. If you can make the playoffs and we can fill the building a couple times, great. If not, no biggie, we weren't going to win it all without Rondo anyway. Let's get through this year and we will start fresh next."